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All results from a given calculation for KCN (Potassium cyanide)

using model chemistry: BLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C*V 1Σ
1 2 no C*V 1Σ
1 3 yes CS 1A'

Conformer 1 (C*V)

Jump to S1C2 S1C3
Energy calculated at BLYP/6-311G**
 hartrees
Energy at 0K-692.786383
Energy at 298.15K-692.785745
HF Energy-692.786383
Nuclear repulsion energy60.929610
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at BLYP/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2116 2108 6.47      
2 Σ 277 276 58.19      
3 Π 75 74 10.61      
3 Π 75 74 10.61      

Unscaled Zero Point Vibrational Energy (zpe) 1271.3 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 1266.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at BLYP/6-311G**
B
0.09881

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.308
C2 0.000 0.000 -1.278
N3 0.000 0.000 -2.454

Atom - Atom Distances (Å)
  K1 C2 N3
K12.58633.7624
C22.58631.1761
N33.76241.1761

picture of Potassium cyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
K1 C2 N3 180.000 K1 N3 C2 0.000
C2 K1 N3 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.693      
2 C -0.416      
3 N -0.277      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 11.524 11.524
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.436 0.000 0.000
y 0.000 -23.436 0.000
z 0.000 0.000 -30.538
Traceless
 xyz
x 3.551 0.000 0.000
y 0.000 3.551 0.000
z 0.000 0.000 -7.102
Polar
3z2-r2-14.203
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.713 0.000 0.000
y 0.000 3.713 0.000
z 0.000 0.000 8.368


<r2> (average value of r2) Å2
<r2> 100.595
(<r2>)1/2 10.030

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at BLYP/6-311G**
 hartrees
Energy at 0K-692.788385
Energy at 298.15K 
HF Energy-692.788385
Nuclear repulsion energy64.312017
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at BLYP/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2057 2049 107.13      
2 Σ 312 311 68.46      
3 Π 63i 62i 1.63      
3 Π 63i 62i 1.63      

Unscaled Zero Point Vibrational Energy (zpe) 1122.2 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 1117.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at BLYP/6-311G**
B
0.11404

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.212
C2 0.000 0.000 -2.409
N3 0.000 0.000 -1.224

Atom - Atom Distances (Å)
  K1 C2 N3
K13.62082.4360
C23.62081.1848
N32.43601.1848

picture of Potassium cyanide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
K1 C2 N3 0.000 K1 N3 C2 180.000
C2 K1 N3 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.699      
2 C -0.228      
3 N -0.470      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 11.604 11.604
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.384 0.000 0.000
y 0.000 -23.384 0.000
z 0.000 0.000 -33.013
Traceless
 xyz
x 4.814 0.000 0.000
y 0.000 4.814 0.000
z 0.000 0.000 -9.629
Polar
3z2-r2-19.258
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.710 0.000 0.000
y 0.000 3.710 0.000
z 0.000 0.000 8.540


<r2> (average value of r2) Å2
<r2> 89.821
(<r2>)1/2 9.477

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at BLYP/6-311G**
 hartrees
Energy at 0K-692.792861
Energy at 298.15K-692.792720
HF Energy-692.792861
Nuclear repulsion energy68.401059
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at BLYP/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 2042 2034 19.90      
2 A' 302 301 63.70      
3 A' 156 155 7.70      

Unscaled Zero Point Vibrational Energy (zpe) 1249.8 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 1244.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at BLYP/6-311G**
ABC
1.91291 0.16301 0.15021

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.045 0.000
C2 0.630 -1.631 0.000
N3 -0.540 -1.438 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.74882.5408
C22.74881.1851
N32.54081.1851

picture of Potassium cyanide state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
K1 C2 N3 67.387 K1 N3 C2 87.109
C2 K1 N3 25.504
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.635      
2 C -0.248      
3 N -0.387      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.469 9.738 0.000 9.749
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.647 1.070 0.000
y 1.070 -26.465 0.000
z 0.000 0.000 -23.617
Traceless
 xyz
x -2.606 1.070 0.000
y 1.070 -0.833 0.000
z 0.000 0.000 3.439
Polar
3z2-r26.878
x2-y2-1.182
xy1.070
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.937 -0.264 0.000
y -0.264 5.645 0.000
z 0.000 0.000 3.850


<r2> (average value of r2) Å2
<r2> 71.775
(<r2>)1/2 8.472